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CVE-2017-2923

24
FAUCET Score

CVE-2017-2923 is a high-severity heap-based buffer overflow vulnerability in the 'read_biff_next_record function' of FreeXL 1.0.3, affecting Debian Linux and FreeXL. This flaw allows remote code execution when a user opens a specially crafted XLS file. With a CVSS score of 8.8, it poses a significant risk due to its network attack vector and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.3CPE matchmatch criteria
cpe:2.3:a:freexl_project:freexl:1.0.3:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.31%
Probability of exploitation in next 30 days
EPSS Percentile
87.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0331 is in the 86th percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

debian.org / security/2017/dsa-3976
Third Party Advisory
talosintelligence.com / vulnerability_reports/TALOS-2017-0430
Third Party Advisory
securityfocus.com / bid/100807
Broken Link